The Fresh River is a 3.2-mile-long (5.1 km)[1] stream in southeastern New Hampshire in the United States.

Nearly the entire course of the river is through freshwater wetlands.

The vertical drop of the stream over its three-mile length is less than 30 feet (9 m).

It rises on the border between the towns of Epping and Brentwood and flows east into the northern corner of Exeter.

This article related to a river in New Hampshire is a stub.